If you’re 10 months in to building a B2B SaaS and you’re getting outside help for infra then you’re almost certainly overengineering for the scale you’re at.

Monolith on Heroku/Encore etc is your friend.

Speed is all that matters when you’re pre-PMF, so do whatever is going to get a product in to market fastest so you can iterate and find out if what you’re building is worthwhile.

Depending on the product, this could be with no-code, or could be with a simple, reliable tech stack that you’re very familiar with. Do not build a new product with a tech stack you’re unfamiliar with. It will kill your velocity and quite possibly your company.

Don’t listen to anyone who tells you to “do it right the first time” or hedge your bets by building something complex as practice for your next thing. It’s nonsense espoused by people who’ve never built a company before.